JAKARTA, Indonesia—Attackers tied to Islamic State marked a new battlefield in the extremist group’s global expansion, terrorizing the Indonesian capital and killing two people in a suicide assault.
The coordinated gunfire-and-bomb attack, in which all five assailants also died, raised fears of a return of Islamist-inspired violence in parts of Asia that had largely subdued an earlier generation of militants.
The rise of Islamic State has drawn hundreds of Southeast Asia militants to Syria and Iraq—some 600 from Indonesia and Malaysia alone, authorities estimate. Though the numbers are small compared with Western Europe, they are bigger than the cadre of Asian militants that was forged in Afghanistan in an earlier decade.
And extremist leaders from Indonesia to the Philippines have pledged loyalty to its self-declared caliphate.
Security officials fear Islamic State’s growth is inspiring local radicals to become more violent at home to draw attention and lay claim to Islamic State leadership in the region. “There has been clamor among the ISIS community in Indonesia…to do something to show ISIS central leadership that Indonesia is important also,” said Todd Elliott, a terrorism analyst from Concord Consulting, referring to Islamic State.
The Jakarta attackers came from a group in Solo, on Indonesia’s main island of Java, that had been in contact with Islamic State in Syria, Indonesian officials said. Deputy Police Chief Budi Gunawan said communications had been detected, but didn’t elaborate.
Islamic State claimed responsibility for the attacks on its social-media accounts, according to the SITE Intelligence Group, which monitors global jihadist activity. But it wasn’t clear whether the Jakarta attackers had actual training from the group.